论文标题
具有高传输的一维媒体的时间延迟
Time delay in 1D disordered media with high transmission
论文作者
论文摘要
我们研究了具有高传播的一维介质中反射和传输波的时间延迟。高度透明和半透明的随机培养基在自然界中发现或可以合成产生。我们对在无序波导中传播的微波进行数值模拟，以表明反射幅度是由复杂的高斯随机变量描述的，其反射幅度显着的结果是，在扩散型方面中，在反射1D无序培养基中的时间段统计量如随机介质所描述。对于传输波，我们从数值上表明时间延迟是添加剂量，因此其波动遵循高斯分布。最终，反射和传输的时间延迟的分布是工作中心限制定理的物理例证。
We study the time delay of reflected and transmitted waves in 1D disordered media with high transmission. Highly transparent and translucent random media are found in nature or can be synthetically produced. We perform numerical simulations of microwaves propagating in disordered waveguides to show that reflection amplitudes are described by complex Gaussian random variables with the remarkable consequence that the time-delay statistics in reflection of 1D disordered media are described as in random media in the diffusive regime. For transmitted waves, we show numerically that the time delay is an additive quantity and its fluctuations thus follow a Gaussian distribution. Ultimately, the distributions of the time delay in reflection and transmission are physical illustrations of the central limit theorem at work.
